<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>翻转数组</title>
  <script>
    var arr = ['red', 'green', 'blue', 'pink', 'purple']
    var newArr = []
    for (var i = arr.length - 1; i >= 0; i--) {
      newArr[newArr.length] = arr[i]
    }
    console.log(newArr)
  </script>
</head>
<body>

</body>
</html>